Outstanding colt Zoustar will have 10 rivals in Saturday's Coolmore Stud Stakes at Flemington as his jockey Jim Cassidy gets a golden chance to win his 100th Group One race.

The Coolmore Stud Stakes is the first of four Group One races on Victoria Derby day and has attracted a handy field which also includes Golden Slipper runner-up Sidestep and Bill Stutt Stakes winner Divine Calling.

Golden Rose winner Zoustar is set to make his Melbourne debut in the straight-track feature from barrier 10.

Sidestep will jump from the inside gate while last-start Group-winning filly Thump has drawn the outside.

A field of nine has been declared for the $1 million Mackinnon Stakes with Caulfield Cup fourth placegetter Jet Away drawing the rails.

Dual Toorak Handicap winner Solzhenitsyn has barrier two and Melbourne Cup hopeful Dear Demi barrier eight.

International Side Glance will back up from his sixth in the Cox Plate and has gate six with Jamie Spencer to ride.

Complacent and Savvy Nature are among a full field of 16 plus two emergencies for the Victoria Derby, while gun Sydney mare Red Tracer headlines a field of 14 for the Group One Myer Classic for fillies and mares.

Red Tracer has barrier 10 with stablemate Catkins drawn to her immediate outside.